EP2608459B1 - Router, virtuelles cluster-routersystem und herstellungsverfahren dafür - Google Patents

Router, virtuelles cluster-routersystem und herstellungsverfahren dafür Download PDF

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Publication number
EP2608459B1
EP2608459B1 EP11755711.6A EP11755711A EP2608459B1 EP 2608459 B1 EP2608459 B1 EP 2608459B1 EP 11755711 A EP11755711 A EP 11755711A EP 2608459 B1 EP2608459 B1 EP 2608459B1
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Prior art keywords
forwarding
control device
virtual cluster
interface
routers
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English (en)
French (fr)
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EP2608459A4 (de
EP2608459A2 (de
Inventor
Enhui Liu
Xinping Wang
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/58—Association of routers
    • H04L45/586—Association of routers of virtual routers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/42—Centralised routing

Definitions

  • Embodiments of the present invention relate to communications technologies, and in particular, to a router, a virtual cluster router system, and a method for establishing a virtual cluster router.
  • a router cluster means that multiple physically independent routers are connected to form a logically integrated router system. Each of the independent routers is centrally and uniformly managed and all routers operate as one router. This greatly simplifies operation and maintenance of a device.
  • router cluster multiple independent routers generally need to be interconnected in star topology mode by a particular central switching chassis.
  • Network interconnection implemented by using a central switching chassis demands a single requirement on a topology between routers in a cluster, which results in limited scale and capacity of a system and a failure in adapting to network scale changes; dedicated switching chassis and dedicated interfaces need to be designed on routers in the cluster to connect to the central switching chassis, and therefore design costs are high and it is difficult to expand.
  • US6496510B1 discloses a router device with a plurality of router node devices interconnected via internal transmission lines, in which each of the plurality of router node devices comprises a unit for connecting to a plurality of networks; a routing table describing paths via which packets are forwarded; a forwarding unit for forwarding a packet between one network and another, and for forwarding the packet between the network connected to the router node device and the network connected to some other router node device of the router device via some other router node device, according to the routing table; a routing information collection unit for collecting routing information from each router device connected to the network, not via other router node devices, to the router node device to create a routing table in each router device, the routing information being information to be exchanged among router devices, a distribution unit for distributing the collected routing information to other router node devices via the internal transmission lines; and a routing table generation unit for generating the routing table based on the collected routing information and the routing information distributed from the other router node devices.
  • US2004013120A1 discloses a method and apparatus for routing and forwarding between virtual routers is described.
  • a method in a single network element comprises peering a first virtual router to a second virtual router, wherein the first and second virtual routers have separate address spaces and separate routing tables, distributing a set of one or more routes from the first virtual router to the second virtual router, wherein a first of the set of routes identifies the first virtual router as a next hop of the first route, said first route including a destination, and downloading to a set of one or more forwarding tables, the destination and the next hop.
  • Embodiments of the present invention provide a router, a virtual cluster router system, and a method for establishing a virtual cluster router, which are capable of solving the preceding problems in the prior art.
  • the virtual cluster router system is capable of implementing separation of control and forwarding, thereby improving flexibility and reliability of network extension.
  • the present invention provides a virtual cluster router system, where the system includes a control device and at least two forwarding Routers; the at least two forwarding Routers establish communication with other network devices outside the system through respective external interfaces; control management channels are established between the control device and the at least two forwarding Routers, wherein the establishing control management channels between the control device and the at least two forwarding Routers specifically comprises: establishing control management channels between the control device and the at least two forwarding Routers through a switch; the control device is configured to collect control protocol information that is sent by other network devices outside the system and received by each external interface of the virtual cluster router system, and perform centralized calculation to generate an external routing information base of the virtual cluster router system; the control device performs control protocol communication with another router outside the system on behalf of the virtual cluster router system, so that the virtual cluster router system is externally embodied as one router at the control protocol layer; the control device is further configured to collect control protocol information between each of the forwarding Routers and the control device in the virtual cluster router system,
  • the present invention provides a router, where the router is applied to the virtual cluster router system described above, and a control management channel is established between the router and the control device in the system;
  • the router includes a message processing module and a sending module: the message processing module is configured to, when receiving a message including a control protocol where the message is sent from the outside of the virtual cluster router system, extract a destination card identifier in the message, and send the message to the sending module if the destination card identifier is on the control device; and the sending module is configured to receive the message and send the message to the control device through the established control management channel.
  • the present invention further provides a control device, where the control device is applied to the virtual cluster router system described in claim 1, and control management channels are established between the control device and at least two forwarding Routers in the system; the at least two forwarding Routers establish communication with other network devices outside the system through respective external interfaces; and the control device comprises:
  • the present invention provides a method for establishing a virtual cluster router system, where the method is applied to the virtual cluster router system described above, and the virtual cluster router system includes a control device and at least two forwarding routers Router; the method includes: establishing control management channels between the control device and the at least two forwarding Routers, wherein the establishing control management channels between the control device and the at least two forwarding Routers specifically comprises: establishing control management channels between the control device and the at least two forwarding Routers through a switch; collecting, by the control device, control protocol information that is sent by other network devices outside the system and received by each external interface of the virtual cluster router system, and performing centralized calculation to generate an external routing information base of the virtual cluster router system; performing, by the control device, control protocol communication with another router outside the system on behalf of the virtual cluster router system, so that the virtual cluster router system is externally embodied as one router at the control protocol layer; further collecting, by the control device, control protocol information between each of the forwarding Routers and the control device
  • a topology in the virtual cluster router system is not limited and any topology such as star topology, tree topology, ring topology, FullMesh topology, or mixed topology can be supported.
  • Forwarding routers in the virtual cluster router system can be connected through a standard interface. In this way, costs are reduced and an existing routing protocol does not need to be modified for a network outside the virtual cluster router system.
  • function distinction is performed using a control device and forwarding routers, thereby implementing separation of control and forwarding and improving flexibility and reliability of network extension.
  • An embodiment of the present invention provides a virtual cluster router system, where the system includes a control device Controller and at least two forwarding routers Router; and the at least two forwarding Routers establish communication with other network devices outside the system through respective external interfaces.
  • Control management channels are established between the control device and the at least two forwarding Routers.
  • the control device is configured to collect control protocol information that is sent by other network devices outside the system and received by each external interface of the virtual cluster router system, and perform centralized calculation to generate an external routing information base of the virtual virtual cluster router system; and the control device performs control protocol communication with another router outside the system on behalf of the virtual cluster router system, so that the virtual cluster router system is externally embodied as one router at the control protocol layer.
  • the control device is further configured to collect control protocol information between each of the forwarding Routers and the control device in the virtual cluster router system, and perform centralized calculation to generate an internal routing information base of the virtual cluster router system.
  • the control device combines the external routing information base of the system and the internal routing information base of the system to generate a final forwarding information base, and sends the final forwarding information base to the at least two forwarding Routers through the control management channels.
  • control device may collect the control protocol information that is sent by other network devices outside the system and received by each external interface of the virtual cluster router system or the control protocol information between each of the forwarding Routers and the control device in the virtual cluster router system through static configuration or the control management channels. Further, a manner for the control device to collect the information through the control management channels may be as follows:
  • the at least two forwarding Routers are configured to, when receiving a message including a control message where the message is sent from the outside of the virtual cluster router system, extract a destination card identifier in the message, and send the message to the control device through the established control management channels if the destination card identifier is on the control device.
  • the at least two forwarding Routers send control protocol information initiated by each of the two forwarding Routers to the control device through the control management channels.
  • the preceding functions need to be specifically determined to be enabled on the control device and each of the forwarding Routers according to a specific physical form of the control device to implement a communication connection in the virtual cluster router system provided in this embodiment of the present invention.
  • communication agents are installed on the control device and each of the forwarding Routers or a communication agent is installed on each of the forwarding Routers, that is, the preceding functions are implemented by the communication agents.
  • enabling the preceding functions on a forwarding Router specifically refers to enabling the preceding functions on an interconnection interface board where an interface, on the forwarding Router side, of a control management channel between the forwarding Router and the control device is located.
  • the preceding functions may be enabled on an interconnection interface board where an interface, on the control device side, of a control management channel between the control device and each of the forwarding Routers is located.
  • an interface, on the control device side, of a control management channel between the control device and each of the forwarding Routers is located on a main board MPU, the preceding functions do not need to be enabled.
  • the following are configured on the control device: an identifier of the control device, an identifier of an interface, on the control device side, of a control management channel between the control device and each of the forwarding Routers and an IP address of the interface, an identifier of each of the forwarding Routers, and an identifier of an interface, on a forwarding Router side, of a control management channel between the control device and each of the forwarding Routers and an IP address of the interface.
  • the following are configured on the at least two forwarding Routers: an identifier of each of the forwarding Routers, an IP address of an interface, on the control device side, of a control management channel between each of the forwarding Routers and the control device, and an identifier of an interface, on a forwarding Router side, of a control management channel between each of the forwarding Routers and the control device and an IP address of the interface.
  • a topology of the at least two forwarding Routers is at least one or any combination of the following topologies: star topology, tree topology, ring topology, and full mesh FullMesh topology.
  • the forwarding Routers are interconnected through a standard interface to form a cluster with a star/tree/ring topology.
  • a standard internal interface may be a GE/10GE Ethernet interface, a POS interface, and the like.
  • the cluster is externally embodied as one router at an IP protocol control layer.
  • a Root Router serves as a root node of the star/tree/ring topology, and a Leaf Router serves as a leaf node of the star/tree/ring topology.
  • an intermediate node may be a Router, a Switch, an optical transmission device, and the like.
  • the topology of the at least two forwarding Routers is a star, tree, or ring topology
  • the following are further configured on the control device: a type of a topology for interconnecting the forwarding Routers in the virtual cluster router system, and a topology role of each of the forwarding Routers; and the following is further configured on the at least two forwarding Routers: a topology role of each of the forwarding Routers.
  • the type of the topology is a star topology
  • a topology role of a root node in a tree or ring topology may be defined as a Root Router
  • a topology role of a leaf node in a tree or ring topology may be defined as a Leaf Router.
  • FIG. 1 is a schematic diagram of establishing a control management channel according to an embodiment of the present invention.
  • a Controller is the control device in this application, and Root Router1, Leaf Router2, and Leaf Router3 are the forwarding Routers.
  • At least the following information is configured on the control device:
  • the at least two forwarding Routers each include: an interface information reporting module, configured to report interface information to the control device, where the interface information includes information about all interfaces connecting a forwarding router and the outside of the virtual cluster router system, and information about all interfaces connecting the forwarding router and the inside of the virtual cluster router system.
  • the control device includes: an interface management module, configured to receive the interface information reported by the at least two forwarding Routers and save the interface information.
  • a manner for connecting the control device and each of the forwarding Routers is not limited in the present invention.
  • the control management channels are implemented in in-band or out-band manner.
  • the control device needs to further configure static routes from the control device to the at least two forwarding Routers; and the at least two forwarding Routers need to further configure static routes from the forwarding Routers to the control device.
  • the control device establishes the control management channels with each of the forwarding Routers through a switch.
  • the establishing control management channels between the control device and the at least two forwarding Routers specifically includes: establishing control management channels between the interconnection interface board of the control device and the at least two forwarding Routers, where the interconnection interface board is configured to receive the message, extract the destination card identifier in the message, and if the destination card identifier is on the control device, send the message to the main board for processing the message.
  • FIG. 2-1 is a schematic diagram of a virtual cluster router system with a star topology according to an embodiment of the present invention.
  • FIG. 2-2 is a schematic diagram of a virtual cluster router system with a tree topology according to an embodiment of the present invention.
  • FIG. 2-3 is a schematic diagram of a virtual cluster router system with a ring topology according to an embodiment of the present invention.
  • FIG. 2-4 is a schematic diagram of a virtual cluster router system with a FullMesh topology according to an embodiment of the present invention.
  • FIG. 2-5 is a schematic diagram of a virtual cluster router system with a random topology according to an embodiment of the present invention.
  • a Controller in the figures is the control device in this application.
  • a Root Router is a root node among the forwarding routers
  • a Leaf Router is a leaf node among the forwarding routers.
  • a dashed line indicates a control flow sent between the control device and each of the forwarding Routers through an established control management channel, and a solid line indicates a practical physical connection between forwarding Routers.
  • a solid point indicates an internal interface in the virtual cluster router system. The interconnection is implemented through a standard interface.
  • the forwarding Routers establish communication with other network devices outside the system through external interfaces.
  • Protocol adaptation in a virtual cluster router system based on the virtual cluster router system described in this embodiment of the present invention, so that multiple control protocols such as IP, MPLS, and VPN are supported.
  • the virtual cluster router system is embodied as one router at the protocol control layer.
  • the following takes a virtual cluster router system supporting IP service forwarding as an example for description.
  • the control device specifically includes: a forwarding information base collection module, configured to collect route control protocol information that is sent by other network devices outside the system and received by each external interface of the virtual cluster router system, and perform centralized calculation to generate an external routing information base eFIB of the virtual cluster router system; and collect control protocol information between each of the forwarding Routers and the control device in the virtual cluster router system, acquire information about an internal interconnection topology between each of the forwarding Routers, and perform centralized calculation to generate an internal routing information base iFIB of the virtual cluster router system, where the iFIB includes: a node ID of each of the forwarding Routers, an ID of an internal interface of a data channel, and an IP address of the internal interface, and the eFIB includes: an identifier of an external interface of each of the forwarding Routers and an IP address of the external interface; a combination module, configured to combine the iFIB and the eFIB to generate a final forwarding information base of
  • the combination module further includes:
  • the control device needs to configure at least information such as an identifier of each of the forwarding Routers, an identifier of an internal interface of a data channel of each of the forwarding Routers, and the IP address of the internal interface to establish and maintain an internal topology database of the cluster.
  • the type of the topology for interconnecting the forwarding Routers is a topology with a root node, such as star topology, tree topology, and ring topology
  • the following information needs to be further configured on a forwarding information base establishment module: the type of the topology for interconnecting the forwarding Routers in the virtual cluster router system, and a topology role of each of the forwarding Routers.
  • the iFIB can be generated by using the Intermediate-System to Intermediate-System (Intermediate-System to Intermediate-System, ISIS) protocol and transparent interconnection of lots of links (Transparent Interconnection of Lots of Links, TRILL) encapsulation.
  • ISIS Intermediate-System to Intermediate-System
  • TRILL transparent Interconnection of Lots of Links
  • the control device centrally calculates and aggregates iFIBs of each of the forwarding Routers and sends them to each Router node through a control channel.
  • the generation of the iFIB may be implemented through centralized calculation performed by the control device or through calculation performed by each of the forwarding Routers.
  • the combination of the eFIB and the iFIB may be centrally completed by the control device or completed by each of the forwarding Routers.
  • the virtual cluster router system can be externally embodied as one router at the IP protocol control layer.
  • two control nodes Controller may be generated in the cluster through static configuration or protocol election to form an active/standby relationship.
  • a topology in the virtual cluster router system is not limited and any topology such as star topology, tree topology, ring topology, FullMesh topology, or mixed topology can be supported.
  • Forwarding routers in the virtual cluster router system can be connected through a standard interface. In this way, costs are reduced and an existing routing protocol does not need to be modified for a network outside the virtual cluster router system.
  • function distinction is performed using a control device and forwarding routers, thereby implementing separation of control and forwarding and improving flexibility and reliability of network extension.
  • An embodiment of the present invention further provides a router, where the router is applied to the preceding virtual cluster router system, and a control management channel is established between the router and a control device in the system.
  • the router includes a message processing module and a sending module.
  • the message processing module is configured to, when receiving a message including a control protocol where the message is sent from the outside of the virtual cluster router system, extract a destination card identifier in the message, and send the message to the sending module if the destination card identifier is on the control device.
  • the sending module is configured to receive the message and send the message to the control device through the established control management channel.
  • the following are configured on the router: an identifier of the router, an IP address of an interface, on the control device side, of the control management channel between the router and the control device, and an identifier of an interface, on the forwarding Router side, of the control management channel between the router and the control device and an IP address of the interface.
  • the router needs to further configure a topology role thereof if a type of a topology for interconnecting the forwarding Routers is a topology with a root node, such as star topology, tree topology, and ring topology.
  • a manner for connecting the control device and each of the forwarding Routers is not limited in the present invention.
  • the control management channel is implemented in in-band or out-band manner.
  • the router needs to further configure a static route from to the control device.
  • the router further includes: an interface information reporting module, configured to report interface information to the control device, where the interface information includes information about all interfaces connecting the router and the outside of the virtual cluster router system, and information about all interfaces connecting the router and the inside of the virtual cluster router system.
  • the router provided in Embodiment 2 is applied to the preceding virtual cluster router system.
  • the router in this embodiment is a forwarding Router in the preceding virtual cluster router system. Therefore, the router in Embodiment 2 can be specifically implemented by referring to the function implementation of the forwarding Router in Embodiment 1.
  • Embodiment 3 of the present invention further provides a control device, where the control device is applied to the virtual cluster router system described above, and control management channels are established between the control device and at least two forwarding Routers in the system.
  • the at least two forwarding Routers establish communication with other network devices outside the system through respective external interfaces.
  • the control device includes:
  • the following are configured on the control device: an identifier of the control device, an identifier of an interface, on the control device side, of a control management channel between the control device and each of the forwarding Routers and an IP address of the interface, an identifier of each of the forwarding Routers, and an identifier of an interface, on a forwarding Router side, of a control management channel between the control device and each of the forwarding Routers and an IP address of the interface.
  • the topology of the at least two forwarding Routers is a star, tree, or ring topology
  • the following are further configured on the control device: a type of a topology for interconnecting the forwarding Routers in the virtual cluster router system, and a topology role of each of the forwarding Routers.
  • the establishing control management channels between the control device and the at least two forwarding Routers specifically includes: establishing control management channels between the control device and the at least two forwarding Routers through a switch.
  • the control device includes a main processing board and an interconnection interface board.
  • the establishing control management channels between the control device and the at least two forwarding Routers specifically includes: establishing control management channels between the interconnection interface board of the control device and the at least two forwarding Routers.
  • the control management channels are implemented in in-band or out-band manner.
  • the control device needs to further configure static routes from the control device to the at least two forwarding Routers.
  • the control protocol includes: the IP protocol, the MPLS protocol, or the VPN protocol.
  • the forwarding information base collection module is specifically configured to collect route forwarding information that is sent by other network devices outside the system and received by each external interface of the virtual cluster router system, and perform centralized calculation to generate an external routing information base eFIB of the virtual cluster router system; and collect control protocol information between each of the forwarding Routers and the control device in the virtual cluster router system, and perform centralized calculation to generate an internal routing information base iFIB of the virtual cluster router system, where the iFIB includes: a node ID of each of the forwarding Routers, an ID of an internal interface of a data channel, and an IP address of the internal interface, and the eFIB includes: an identifier of an external interface of each of the forwarding Routers and an IP address of the external interface; the combination module is specifically configured to combine the iFIB and the eFIB to generate a final forwarding information base of the virtual cluster router system; and the sending module is specifically configured to send the final forwarding information base of the virtual cluster router system to the
  • the combination module further includes:
  • the control device further includes: an interface management module, configured to receive the interface information reported by the at least two forwarding Routers and save the interface information.
  • control device provided in this embodiment of the present invention is applied to a virtual cluster router system.
  • a topology in the virtual cluster router system is not limited in the system and any topology such as star topology, tree topology, ring topology, full mesh FullMesh topology, or mixed topology can be supported.
  • Forwarding routers in the virtual cluster router system can be connected through a standard interface. In this way, costs are reduced and an existing routing protocol does not need to be modified for a network outside the virtual cluster router system.
  • function distinction is performed using a control device and forwarding routers, thereby implementing separation of control and forwarding and improving flexibility and reliability of network extension.
  • Embodiment 4 of the present invention provides a method for establishing a virtual cluster router system, where the method is applied to the virtual cluster router system described in claim 1.
  • the virtual cluster router system includes a control device and at least two forwarding routers Router.
  • the method includes the following:
  • a topology in the virtual cluster router system is not limited in the method and any topology such as star topology, tree topology, ring topology, FullMesh topology, or mixed topology can be supported.
  • Forwarding routers in the virtual cluster router system can be connected through a standard interface. In this way, costs are reduced and an existing routing protocol does not need to be modified for a network outside the virtual cluster router system.
  • function distinction is performed using a control device and forwarding routers, thereby implementing separation of control and forwarding and improving flexibility and reliability of network extension.
  • the program may be stored in a computer readable storage medium.
  • the foregoing storage medium includes various media capable of storing program codes, such as a ROM, a RAM, a magnetic disk or an optical disk.

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Claims (17)

  1. Virtuelles Clusterroutersystem, das eine Steuervorrichtung und wenigstens zwei Weiterleitungsrouter umfasst, wobei die wenigstens zwei Weiterleitungsrouter eine Kommunikation mit anderen Netzvorrichtungen außerhalb des Systems durch entsprechende externe Schnittstellen aufbauen;
    Steuermanagementkanäle zwischen der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern aufgebaut sind, wobei das Aufbauen der Steuermanagementkanäle zwischen der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern insbesondere Folgendes umfasst: Aufbauen von Steuermanagementkanälen zwischen der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern über einen Verteiler;
    die Steuervorrichtung konfiguriert ist, Steuerprotokollinformationen, die durch andere Netzvorrichtungen außerhalb des Systems gesendet werden und durch jede externe Schnittstelle des virtuellen Clusterroutersystems empfangen werden, zu sammeln und zentralisierte Berechnung auszufiihren, um eine externe Lenkungsinformationsbasis des virtuellen Clusterroutersystems zu erzeugen; die Steuervorrichtung Steuerprotokollkommunikation mit einem weiteren Router außerhalb des Systems für das virtuelle Clusterroutersystem ausfiihrt, wobei das virtuelle Clusterroutersystem extern als ein Router in der Steuerprotokollschicht verkörpert ist;
    die Steuervorrichtung ferner konfiguriert ist, Steuerprotokollinformationen zwischen jedem der Weiterleitungsrouter und der Steuervorrichtung in dem virtuellen Clusterroutersystem zu sammeln und zentralisierte Berechnung auszuführen, um eine interne Lenkungsinformationsbasis des virtuellen Clusterroutersystems zu erzeugen;
    und
    die Steuervorrichtung konfiguriert ist, die externe Lenkungsinformationsbasis des Systems und die interne Lenkungsinformationsbasis des Systems zu kombinieren, um eine endgültige Weiterleitungsinformationsbasis zu erzeugen, und die endgültige Weiterleitungsinformationsbasis über die Steuermanagementkanäle zu den wenigstens zwei Weiterleitungsroutern sendet.
  2. System nach Anspruch 1, wobei das Sammeln von Steuerprotokollinformationen, die durch andere Netzvorrichtungen außerhalb des Systems gesendet und durch jede externe Schnittstelle des virtuellen Clusterroutersystem empfangen werden, insbesondere Folgendes umfasst:
    Extrahieren durch die wenigstens zwei Weiterleitungsrouter, wenn eine Nachricht empfangen wird, die ein Steuerprotokoll umfasst, wobei die Nachricht von außerhalb des virtuellen Clusterroutersystems gesendet wird, einer Zielkartenkennung in der Nachricht und Senden der Nachricht über die aufgebauten Steuermanagementkanäle zu der Steuervorrichtung, falls die Zielkartenkennung auf der Steuervorrichtung ist.
  3. System nach Anspruch 1, wobei das Folgende auf der Steuervorrichtung konfiguriert ist: eine Kennung der Steuervorrichtung, eine Kennung einer Schnittstelle auf der Steuervorrichtungsseite eines Steuermanagementkanals zwischen der Steuervorrichtung und jedem der Weiterleitungsrouter und eine IP-Adresse der Schnittstelle, eine Kennung jedes der Weiterleitungsrouter und eine Kennung einer Schnittstelle auf einer Weiterleitungsrouterseite eines Steuermanagementkanals zwischen der Steuervorrichtung und jedem der Weiterleitungsrouter und eine IP-Adresse der Schnittstelle; und
    das Folgende auf den wenigstens zwei Weiterleitungsroutern konfiguriert ist: eine Kennung jedes der Weiterleitungsrouter, eine IP-Adresse einer Schnittstelle auf der Steuervorrichtungsseite eines Steuermanagementkanals zwischen jedem der Weiterleitungsrouter und der Steuervorrichtung und eine Kennung einer Schnittstelle auf einer Weiterleitungsrouterseite eines Steuermanagementkanals zwischen jedem der Weiterleitungsrouter und der Steuervorrichtung und eine IP-Adresse der Schnittstelle.
  4. System nach Anspruch 1, wobei die wenigstens zwei Weiterleitungsrouter eine Topologie durch eine Standardschnittstelle aufbauen.
  5. System nach Anspruch 1, wobei die Steuervorrichtung eine Hauptplatine und eine Verbindungsschnittstellenplatine umfasst; und
    dementsprechend das Aufbauen der Steuermanagementkanäle zwischen der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern insbesondere Folgendes umfasst: Aufbauen von Steuermanagementkanälen zwischen der Verbindungsschnittstellenplatine der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern.
  6. System nach Anspruch 1, wobei die Steuermanagementkanäle auf eine In-Band- oder Out-Band-Weise implementiert sind; und wenn die Steuermanagementkanäle auf eine In-Band-Weise implementiert sind die Steuervorrichtung ferner statische Wege von der Steuervorrichtung zu den wenigstens zwei Weiterleitungsroutern konfigurieren muss; und jeder der wenigstens zwei Weiterleitungsrouter ferner statische Wege von jedem Router zu der Steuervorrichtung konfigurieren muss.
  7. System nach Anspruch 1, wobei die Steuervorrichtung insbesondere Folgendes umfasst: ein Weiterleitungsinformationsbasissammelmodul, das konfiguriert ist, Lenkungsinformationen, die durch andere Netzvorrichtungen außerhalb des Systems gesendet werden und durch jede externe Schnittstelle des virtuellen Clusterroutersystems empfangen werden, zu sammeln und zentralisierte Berechnung auszufiihren, um eine externe Lenkungsinformationsbasis eFIB des virtuellen Clusterroutersystems zu erzeugen; und Lenkungsinformationen zwischen jedem der Weiterleitungsrouter und der Steuervorrichtung in dem virtuellen Clusterroutersystem zu sammeln und zentralisierte Berechnung auszuführen, um eine interne Lenkungsinformationsbasis iFIB des virtuellen Clusterroutersystems zu erzeugen, wobei die iFIB Folgendes umfasst: eine Knoten-ID jedes der Weiterleitungsrouter, eine ID einer internen Schnittstelle eines Datenkanals und eine IP-Adresse der internen Schnittstelle, und die eFIB Folgendes umfasst: eine Kennung einer externen Schnittstelle jedes der Weiterleitungsrouter und eine IP-Adresse der externen Schnittstelle;
    ein Kombinationsmodul, das konfiguriert ist, die iFIB und die eFIB zu kombinieren, um eine endgültige Weiterleitungsinformationsbasis des virtuellen Clusterroutersystems zu erzeugen; und
    ein Sendemodul, das konfiguriert ist, die endgültige Weiterleitungsinformationsbasis des virtuellen Clusterroutersystems über die Steuermanagementkanäle zu den wenigstens zwei Weiterleitungsroutern zu senden.
  8. System nach Anspruch 7, wobei das Kombinationsmodul ferner Folgendes umfasst:
    eine Weiterleitungsinformationserfassungseinheit, die konfiguriert ist, gemäß Informationen über eine externe Schnittstelle in der eFIB einen Weiterleitungsrouter, in dem sich die externe Schnittstelle befindet, zu erfassen; und Informationen über einen Weg zu dem Weiterleitungsrouter, in dem sich die externe Schnittstelle befindet, aus der iFIB zu erfassen; und
    eine Weiterleitungsinformationskombinationseinheit, die konfiguriert ist, eine Zieladresse, die den Informationen über die externe Schnittstelle in der eFIB und den Informationen über den Weg zu dem Weiterleitungsrouter, in dem sich die externe Schnittstelle befindet, in der iFIB entspricht, in eine endgültige Weiterleitungsinformationsbasis des virtuellen Clusterroutersystems zu kombinieren.
  9. System nach Anspruch 1, wobei jeder der wenigstens zwei Weiterleitungsrouter ferner Folgendes umfasst: ein Schnittstelleninformationsberichtsmodul, das konfiguriert ist, Schnittstelleninformationen zu der Steuervorrichtung zu berichten, wobei die Schnittstelleninformationen Informationen über alle Schnittstellen, die einen Weiterleitungsrouter und das Äußere des virtuellen Clusterroutersystems verbinden, und Informationen über alle Schnittstellen, die den Weiterleitungsrouter und das Innere des virtuellen Clusterroutersystems verbinden, umfassen; und
    die Steuervorrichtung ferner Folgendes umfasst: ein Schnittstellenmanagementmodul, das konfiguriert ist, die Schnittstelleninformationen, die durch die wenigstens zwei Weiterleitungsrouter berichtet werden, zu empfangen und die Schnittstelleninformationen zu speichern.
  10. Steuervorrichtung, wobei die Steuervorrichtung auf das in Anspruch 1 beschriebene virtuelle Clusterroutersystem angewandt ist und Steuermanagementkanäle zwischen der Steuervorrichtung und wenigstens zwei Weiterleitungsroutern in dem System aufgebaut sind; die wenigstens zwei Weiterleitungsrouter Kommunikation mit anderen Netzvorrichtungen außerhalb des Systems über jeweilige externe Schnittstellen aufbauen; und
    die Steuervorrichtung Folgendes umfasst:
    ein Weiterleitungsinformationsbasissammelmodul, das konfiguriert ist, Steuerprotokollinformationen, die durch andere Netzvorrichtungen außerhalb des Systems gesendet werden und durch jede externe Schnittstelle des virtuellen Clusterroutersystems empfangen werden, zu sammeln und zentralisierte Berechnung auszufiihren, um eine externe Lenkungsinformationsbasis des virtuellen Clusterroutersystems zu erzeugen, wobei das virtuelle Clusterroutersystem extern als ein Router in der Steuerprotokollschicht verkörpert ist; und Steuerprotokollinformationen zwischen jedem der Weiterleitungsrouter und der Steuervorrichtung in dem virtuellen Clusterroutersystem zu sammeln und zentralisierte Berechnung auszufiihren, um eine interne Lenkungsinformationsbasis des virtuellen Clusterroutersystems zu erzeugen, wobei das Aufbauen von Steuermanagementkanälen zwischen der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern insbesondere Folgendes umfasst: Aufbauen von Steuermanagementkanälen zwischen der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern über einen Verteiler;
    ein Kombinationsmodul, das konfiguriert ist, die externe Lenkungsinformationsbasis des Systems und die interne Lenkungsinformationsbasis des Systems zu kombinieren, um eine endgültige Weiterleitungsinformationsbasis zu erzeugen; und ein Sendemodul, das konfiguriert ist, die endgültige Weiterleitungsinformationsbasis über die Steuermanagementkanäle zu den wenigstens zwei Weiterleitungsroutern zu senden.
  11. Steuervorrichtung nach Anspruch 10, wobei das Folgende auf der Steuervorrichtung konfiguriert ist: eine Kennung der Steuervorrichtung, eine Kennung einer Schnittstelle auf der Steuervorrichtungsseite eines Steuermanagementkanals zwischen der Steuervorrichtung und jedem der Weiterleitungsrouter und eine IP-Adresse der Schnittstelle, eine Kennung jedes der Weiterleitungsrouter und eine Kennung einer Schnittstelle auf einer Weiterleitungsrouterseite eines Steuermanagementkanals zwischen der Steuervorrichtung und jedem der Weiterleitungsrouter und eine IP-Adresse der Schnittstelle.
  12. Steuervorrichtung nach Anspruch 10, wobei die Steuervorrichtung eine Hauptplatine und eine Verbindungsschnittstellenplatine umfasst; und
    dementsprechend das Aufbauen der Steuermanagementkanäle zwischen der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern insbesondere Folgendes umfasst: Aufbauen von Steuermanagementkanälen zwischen der Verbindungsschnittstellenplatine der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern.
  13. Steuervorrichtung nach Anspruch 10, wobei die Steuermanagementkanäle auf eine In-Band- oder Out-Band-Weise implementiert sind; und wenn die Steuermanagementkanäle auf eine In-Band-Weise implementiert sind die Steuervorrichtung ferner statische Wege von der Steuervorrichtung zu den wenigstens zwei Weiterleitungsroutern konfigurieren muss.
  14. Steuervorrichtung nach Anspruch 10, wobei das Weiterleitungsinformationsbasissammelmodul insbesondere konfiguriert ist, Lenkungsinformationen, die durch andere Netzvorrichtungen außerhalb des Systems gesendet werden und durch jede externe Schnittstelle des virtuellen Clusterroutersystems empfangen werden, zu sammeln und zentralisierte Berechnung auszufiihren, um eine externe Lenkungsinformationsbasis eFIB des virtuellen Clusterroutersystems zu erzeugen; und Lenkungsinformationen zwischen jedem der Weiterleitungsrouter und der Steuervorrichtung in dem virtuellen Clusterroutersystem zu sammeln und zentralisierte Berechnung auszuführen, um eine interne Lenkungsinformationsbasis iFIB des virtuellen Clusterroutersystems zu erzeugen, wobei die iFIB Folgendes umfasst: eine Knoten-ID jedes der Weiterleitungsrouter, eine ID einer internen Schnittstelle eines Datenkanals und eine IP-Adresse der internen Schnittstelle, und die eFIB Folgendes umfasst: eine Kennung einer externen Schnittstelle jedes der Weiterleitungsrouter und eine IP-Adresse der externen Schnittstelle;
    das Kombinationsmodul insbesondere konfiguriert ist, die iFIB und die eFIB zu kombinieren, um eine endgültige Weiterleitungsinformationsbasis des virtuellen Clusterroutersystems zu erzeugen; und
    das Sendemodul insbesondere konfiguriert ist, die endgültige Weiterleitungsinformationsbasis des virtuellen Clusterroutersystems über die Steuermanagementkanäle zu den wenigstens zwei Weiterleitungsroutern zu senden.
  15. Steuervorrichtung nach Anspruch 14, wobei das Kombinationsmodul ferner Folgendes umfasst:
    eine Weiterleitungsinformationserfassungseinheit, die konfiguriert ist, gemäß Informationen über eine externe Schnittstelle in der eFIB einen Weiterleitungsrouter, in dem sich die externe Schnittstelle befindet, zu erfassen; und Informationen über einen Weg zu dem Weiterleitungsrouter, in dem sich die externe Schnittstelle befindet, aus der iFIB zu erfassen; und
    eine Weiterleitungsinformationskombinationseinheit, die konfiguriert ist, eine Zieladresse, die den Informationen über die externe Schnittstelle in der eFIB und den Informationen über den Weg zu dem Weiterleitungsrouter, in dem sich die externe Schnittstelle befindet, in der iFIB entspricht, in eine endgültige Weiterleitungsinformationsbasis des virtuellen Clusterroutersystems zu kombinieren.
  16. Steuervorrichtung nach Anspruch 10, wobei die Steuervorrichtung ferner Folgendes umfasst: ein Schnittstellenmanagementmodul, das konfiguriert ist, die Schnittstelleninformationen, die durch die wenigstens zwei Weiterleitungsrouter berichtet werden, zu empfangen und die Schnittstelleninformationen zu speichern.
  17. Verfahren zum Aufbauen eines virtuellen Clusterroutersystems, wobei das Verfahren auf das in Anspruch 1 beschriebene virtuelle Clusterroutersystem angewandt wird und das virtuelle Clusterroutersystem eine Steuervorrichtung und wenigstens zwei Weiterleitungsrouter umfasst; und
    das Verfahren Folgendes umfasst:
    Aufbauen von Steuermanagementkanälen zwischen der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern, wobei das Aufbauen der Steuermanagementkanäle zwischen der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern insbesondere Folgendes umfasst: Aufbauen von Steuermanagementkanälen zwischen der Steuervorrichtung und den wenigstens zwei Weiterleitungsroutern über einen Verteiler;
    Sammeln durch die Steuervorrichtung von Steuerprotokollinformationen, die durch andere Netzvorrichtungen außerhalb des Systems gesendet werden und durch jede externe Schnittstelle des virtuellen Clusterroutersystems empfangen werden, und Ausführen von zentralisierter Berechnung, um eine externe Lenkungsinformationsbasis des virtuellen Clusterroutersystems zu erzeugen; Ausführen durch die Steuervorrichtung von Steuerprotokollkommunikation mit einem weiteren Router außerhalb des Systems für das virtuelle Clusterroutersystem, wobei das virtuelle Clusterroutersystem extern als ein Router in der Steuerprotokollschicht verkörpert ist;
    ferner Sammeln durch die Steuervorrichtung von Steuerprotokollinformationen zwischen jedem der Weiterleitungsrouter und der Steuervorrichtung in dem virtuellen Clusterroutersystem und Ausführen von zentralisierter Berechnung, um eine interne Lenkungsinformationsbasis des virtuellen Clusterroutersystems zu erzeugen; und
    Kombinieren durch die Steuervorrichtung der externen Lenkungsinformationsbasis des Systems und der internen Lenkungsinformationsbasis des Systems, um eine endgültige Weiterleitungsinformationsbasis zu erzeugen, und Senden der endgültigen Weiterleitungsinformationsbasis über die Steuermanagementkanäle zu den wenigstens zwei Weiterleitungsroutern.
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